How to interpret studies of adverse drug reactions

Elevated serum homocysteine levels and increased risk of invasive cervical cancer in US women.

Cancer causes & control : CCC·2001

Low serum and red blood cell folate are moderately, but nonsignificantly associated with increased risk of invasive cervical cancer in U.S. women.

The Journal of nutrition·2001

Alcohol intake, type of beverage, and the risk of cerebral infarction in young women.

Stroke·2001

Risk of ovarian cancer according to use of antidepressants, phenothiazines, and benzodiazepines (United States).

Cancer causes & control : CCC·2000

A case-control study of analgesic use and ovarian cancer.

Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology·2000